900e06212d
When CONFIG_USB_SUPPORT is not selected we get things like: scripts/kconfig/mconf Kconfig warning: (MIPS_SEAD3 && PMC_MSP && CPU_CAVIUM_OCTEON) selects USB_EHCI_BIG_ENDIAN_MMIO which has unmet direct dependencies (USB_SUPPORT && USB) It is much cleaner to make the various system Kconfigs select USB_EHCI_BIG_ENDIAN_MMIO rather than move the system config information into USB's Kconfig, but the warnings are annoying. Eliminate the warning by moving the definition of USB_EHCI_BIG_ENDIAN_MMIO outside of all the Kconfig if statements. While we are at it move USB_OHCI_BIG_ENDIAN_DESC, USB_OHCI_BIG_ENDIAN_MMIO, USB_OHCI_LITTLE_ENDIAN and USB_EHCI_BIG_ENDIAN_DESC too, as they could very well suffer similar problems for other systems. Get rid of the redundant "default n" in USB_OHCI_BIG_ENDIAN_DESC and USB_OHCI_BIG_ENDIAN_MMIO Signed-off-by: David Daney <david.daney@cavium.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
158 lines
4.3 KiB
Text
158 lines
4.3 KiB
Text
#
|
|
# USB device configuration
|
|
#
|
|
|
|
# These are unused now, remove them once they are no longer selected
|
|
config USB_ARCH_HAS_OHCI
|
|
bool
|
|
|
|
config USB_OHCI_BIG_ENDIAN_DESC
|
|
bool
|
|
|
|
config USB_OHCI_BIG_ENDIAN_MMIO
|
|
bool
|
|
|
|
config USB_OHCI_LITTLE_ENDIAN
|
|
bool
|
|
default n if STB03xxx || PPC_MPC52xx
|
|
default y
|
|
|
|
config USB_ARCH_HAS_EHCI
|
|
bool
|
|
|
|
config USB_EHCI_BIG_ENDIAN_MMIO
|
|
bool
|
|
|
|
config USB_EHCI_BIG_ENDIAN_DESC
|
|
bool
|
|
|
|
config USB_ARCH_HAS_XHCI
|
|
bool
|
|
|
|
menuconfig USB_SUPPORT
|
|
bool "USB support"
|
|
depends on HAS_IOMEM
|
|
default y
|
|
---help---
|
|
This option adds core support for Universal Serial Bus (USB).
|
|
You will also need drivers from the following menu to make use of it.
|
|
|
|
if USB_SUPPORT
|
|
|
|
config USB_COMMON
|
|
tristate
|
|
default y
|
|
depends on USB || USB_GADGET
|
|
|
|
config USB_ARCH_HAS_HCD
|
|
def_bool y
|
|
|
|
# ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.
|
|
config USB
|
|
tristate "Support for Host-side USB"
|
|
depends on USB_ARCH_HAS_HCD
|
|
select NLS # for UTF-8 strings
|
|
---help---
|
|
Universal Serial Bus (USB) is a specification for a serial bus
|
|
subsystem which offers higher speeds and more features than the
|
|
traditional PC serial port. The bus supplies power to peripherals
|
|
and allows for hot swapping. Up to 127 USB peripherals can be
|
|
connected to a single USB host in a tree structure.
|
|
|
|
The USB host is the root of the tree, the peripherals are the
|
|
leaves and the inner nodes are special USB devices called hubs.
|
|
Most PCs now have USB host ports, used to connect peripherals
|
|
such as scanners, keyboards, mice, modems, cameras, disks,
|
|
flash memory, network links, and printers to the PC.
|
|
|
|
Say Y here if your computer has a host-side USB port and you want
|
|
to use USB devices. You then need to say Y to at least one of the
|
|
Host Controller Driver (HCD) options below. Choose a USB 1.1
|
|
controller, such as "UHCI HCD support" or "OHCI HCD support",
|
|
and "EHCI HCD (USB 2.0) support" except for older systems that
|
|
do not have USB 2.0 support. It doesn't normally hurt to select
|
|
them all if you are not certain.
|
|
|
|
If your system has a device-side USB port, used in the peripheral
|
|
side of the USB protocol, see the "USB Gadget" framework instead.
|
|
|
|
After choosing your HCD, then select drivers for the USB peripherals
|
|
you'll be using. You may want to check out the information provided
|
|
in <file:Documentation/usb/> and especially the links given in
|
|
<file:Documentation/usb/usb-help.txt>.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called usbcore.
|
|
|
|
if USB
|
|
|
|
source "drivers/usb/core/Kconfig"
|
|
|
|
source "drivers/usb/mon/Kconfig"
|
|
|
|
source "drivers/usb/wusbcore/Kconfig"
|
|
|
|
source "drivers/usb/host/Kconfig"
|
|
|
|
source "drivers/usb/musb/Kconfig"
|
|
|
|
source "drivers/usb/renesas_usbhs/Kconfig"
|
|
|
|
source "drivers/usb/class/Kconfig"
|
|
|
|
source "drivers/usb/storage/Kconfig"
|
|
|
|
source "drivers/usb/image/Kconfig"
|
|
|
|
endif
|
|
|
|
source "drivers/usb/dwc3/Kconfig"
|
|
|
|
source "drivers/usb/chipidea/Kconfig"
|
|
|
|
comment "USB port drivers"
|
|
|
|
if USB
|
|
|
|
config USB_USS720
|
|
tristate "USS720 parport driver"
|
|
depends on PARPORT
|
|
select PARPORT_NOT_PC
|
|
---help---
|
|
This driver is for USB parallel port adapters that use the Lucent
|
|
Technologies USS-720 chip. These cables are plugged into your USB
|
|
port and provide USB compatibility to peripherals designed with
|
|
parallel port interfaces.
|
|
|
|
The chip has two modes: automatic mode and manual mode. In automatic
|
|
mode, it looks to the computer like a standard USB printer. Only
|
|
printers may be connected to the USS-720 in this mode. The generic
|
|
USB printer driver ("USB Printer support", above) may be used in
|
|
that mode, and you can say N here if you want to use the chip only
|
|
in this mode.
|
|
|
|
Manual mode is not limited to printers, any parallel port
|
|
device should work. This driver utilizes manual mode.
|
|
Note however that some operations are three orders of magnitude
|
|
slower than on a PCI/ISA Parallel Port, so timing critical
|
|
applications might not work.
|
|
|
|
Say Y here if you own an USS-720 USB->Parport cable and intend to
|
|
connect anything other than a printer to it.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called uss720.
|
|
|
|
source "drivers/usb/serial/Kconfig"
|
|
|
|
source "drivers/usb/misc/Kconfig"
|
|
|
|
source "drivers/usb/atm/Kconfig"
|
|
|
|
endif # USB
|
|
|
|
source "drivers/usb/phy/Kconfig"
|
|
|
|
source "drivers/usb/gadget/Kconfig"
|
|
|
|
endif # USB_SUPPORT
|